Inhibitory effects of Trichoderma spp. immobilized on heat-treated wood particles on wood degradation by basidiomycetes

摘要

The effects of Trichoderma spp. on wood degradation were examined using five basidiomycetes, i.e., Fomitopsis palustris, Trametes versicolor, and three wild strains. To measure block mass losses, blocks of Japanese white birch (Betula platyphylla var. japonica) were covered with four Trichoderma spp. strains immobilized on heat-treated (240-280 degrees C) wood particles and exposed to the basidiomycetes at 25 degrees C for 8-12 weeks. Each strain caused inhibition of wood degradation. ANCT-05013 provided the strongest inhibition, although inhibition was lost by heat sterilization. Mass losses without the immobilized Trichoderma spp. were 20-87%, but were only 16% and 2-3% with ANCT-05013 after exposure to T versicolor and the other basidiomycetes, respectively. (Japanese Journal of Mycology 52: 62 - 67, 2011)